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10 Best Transmission Additives

From leading brands and best sellers available on the web.
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Top 10 Best Transmission Additives 2026 in the UK

#1

Winner

10.0  score
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Carlube

ATF-G Automatic Transmission Fluid

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25% OFF

Chosen by 1247 this week

#2
9.4  score
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ATP Automotive

ATP AT-205 Re-Seal Stops Leaks Fast In Engines & Transmissions - English & French 236ml

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#3
8.8  score
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XADO

XADO XA 10331 ХАDО REVITALIZANT EX120 for Automatic Transmission (Blister Package, Tube 9 ml)

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#4
8.5  score
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Red Line

Red Line (50304) MT-90 75W-90 GL-4 Manual Transmission and Transaxle Lubricant (MTL) - 1 Quart.

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#5
8.5  score
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Lucas Oil

Lucas Oil 40009 Transmission Fix - 710ml

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23% OFF
#6
7.9  score
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Lubegard

Lubegard 60902 Automatic Transmission Fluid Protectant, 10 oz

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#7
7.6  score
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Mobil

Mobil ATF 220 Premium Automatic Transmission Fluid 142456 1L

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#8
7.6  score
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Liqui Moly

LIQUI MOLY Pro-Line Gear Oil Leak Stop | 500 ml | Oil additive | SKU: 5199

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15% OFF
#9
7.0  score
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Lucas Oil

Lucas Oil 10009 Transmission Fix

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#10
7.0  score
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Liqui Moly

LIQUI MOLY ATF Additive | 250 ml | Oil additive | SKU: 5135

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19% OFF